THE MYCETOZOA 151 



shown I copied by making tracings, and transferring these 

 to cardboard. In the process much of the delicacy of the 

 originals has been lost. Miss G. Lister very kindly gave me 

 permission to use this illustration. 



Those who desire to appreciate fully the morphology 

 of Mycetozoa should study A. Lister's monograph, 2nd 

 edition, revised by Miss G. Lister, 19.11. 



Further morphological details. The elements in Fig. 43, 

 represent types, for the most part as diagrams, based on the 

 works of A. Lister, A. de Bary, T. H. MacBride, and others ; 

 they are not intended to be accurate copies, and to some I 

 have added features to illustrate certain points. Readers 

 will, I hope, be led to consult the original documents. The 

 degree of magnification varies : small designs placed at the 

 side of larger ones, 9 and 77, are only a trifle above the 

 natural size. Spores and capillitium are shown magnified 

 about 300 times. In Badhamia (named after Badham, an 

 English mycologist) lime granules pervade the whole capil- 

 litium, whilst in other Physaraceae the lime granules are 

 limited to expanded parts of the capillitium, as in 2, 3, 4, 

 and 5, and to parts or the whole of the Sporangium wall. 

 In Diderma, 6, one genus of the Plrysaraceae, the capillitium 

 is devoid of lime-knots, but the outer of the two layers of 

 the sporangium w r all contains granules of lime. In Diachaea, 

 7, the stalk and columella are charged with lime, which is 

 absent from the purple capillitium. Of Lycogala, three 

 unequal aethalia (copied from A. Lister's book) and part of 



